APA (7th ed.) Zitazioa
Schmude Jr., R. (2008). Uranus, Neptune, and Pluto and How to Observe Them. Springer US. https://doi.org/10.1007/978-0-387-76602-7
Chicago Style (17th ed.) Zitazioa
Schmude Jr., Richard. Uranus, Neptune, and Pluto and How to Observe Them. New York, NY: Springer US, 2008. https://doi.org/10.1007/978-0-387-76602-7.
MLA (9th ed.) Zitazioa
Schmude Jr., Richard. Uranus, Neptune, and Pluto and How to Observe Them. Springer US, 2008. https://doi.org/10.1007/978-0-387-76602-7.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.